I guess my question would be, did you learn a lesson? The floor is no place for a precision instrument.
If you like that style of torque wrench, buy another and treat it better.
We have about 20 K-D 3/8" and 1/2" drive "clicker style" torque wrenches at work, with calibration being done once a year. Everybody likes those, and we have few to no problems with them.
We also have a 3/4" drive Snap-on digital that most everyone despises. I would not recommend a digital type, as they are not for everybody.